Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630213 | Recording medium excellent in ink absorptivity and process for its production, and process for producing silica-alumina composite sol | Katsumasa Nakahara, Hachirou Hirano, Toshiya Matsubara, Masako Wakabayashi, Yoshinori Kon | 2003-10-07 |
| 6623820 | Silica-alumina composite sol, processes for producing the same, and recording medium | Katsumasa Nakahara, Noriko Torimoto, Hachiro Hirano, Toshiya Matsubara, Shinichi Suzuki +1 more | 2003-09-23 |